Fluid-meter.



P. GAETH. FLUID METER. APPLICATION FILED OCT. 5, 1914.

Patented Apr. 6, 1915.

2 SHEETS-SHEET 1.

P. GAETH.

FLUID METER.

APPLICATION man ocT. 5, 1914.

Patented Apr. 6, 1915.

2 SHEETS-SHEET 2.

7% assess?, Mig/z Z.

' Ohio,

PAUL GAETH, 0F CLEVELAND,

AND ONE-THIRD TO THOMAS J.v

OHIO, ASSIGNOEOF ONE-THIRD T0 WILLIAMF. TAUSCH JACKMAN, BOTH OF CLEVELAND, OHIO.

FLUID-METER.

Specification of Letters Patent.

Patented Apr. 6, 1915.

, .Application filed October 5, 1914. Serial No. 865,145.

To all whom it may concern.'

Be it known that I, PAUL GAETH, citizen of the United States, residing at Cleveland, in the county of Cuyahoga and State of have invented certain new and useful Improvements in Fluid-Meters, of ,which the following is a specification.

This invention relates to iiuid meters, and has for its object to provide a meter for gas or other fluids which will accurately register the amount irrespective of the pressure. The device utilizes a cone-shaped driver which acts on a friction wheel transmitting motion to the registering devices, the cone being lifted or lowered as the pressure increases or decreases, thereby varying the speed of the registering devices accordingly. In the accompanying drawings :Figure 1 is a central vertical section of a Huid meter, embodying the invention. Fig. 2 is a section on the line 2-2 of Fig. 1. Fig. 3 is an enlarged detail in plan of the cone, friction wheel, and vconnected parts. Figs. 4 and 5 are fragmentary views of the motor wheel. .Referring specifically to the drawings, 6 is the motor casing having an outlet 7 therefrom, and an inlet pipe 8 secured to the bottom piece 8 which is screwed into the casing 6. This piece or part 8 is provided at the top with an annular valve seat 9, and with internal spider arms 10 which support a central bearing portion 11 which is hollow as indicated at 12 to receive the stem 14 depending from the valve disk 13, which closes.

against the seat 9. Two fingers 15 depend from the under side of the valve disk, and these fingers straddle one of the spider arms p .10 and thus prevent the disk 13 from turng. A vertical shaft or arbor 16 is mounted at its lower end in a central bearing in the top .of the disk 13, and this shaft has secured thereto the motor wheel 17 having suitable vanes 18 depending therefrom around the edge of the valve. A strengthening'or holding band 19 extends around the lower ends of the vanes. The upper end of the shaft 16 passes through a central opening 6 in the topv 6 of the motor casing, and carries along pinion 20, which meshes with a gear wheel 21 mounted on a shaft 22 which has va long pinion 27 meshing with a gear 28 on rests at its lower end upon the pinion 20, and ,which carries a cone 30. The shafts referred to are supported by which carry brackets 23, 24, 25 and 26. Bearing' against the cone 30, and rotated thereby, is a friction wheel 31 which is mounted on andcarried by a yoke 33`pivoted on the shaft 32. A spring 38 extends between oneof the posts 37 of the yoke and a fixed post 36, which latter is supported by a plate 34 mounted on a standard- 35. The tension of this spring tends to hold the edge 'of the friction wheel 31 in contact with the driving cone 30. chain of gears 39 transmits motion from the shaft of the friction disk to the meter shafts devices may be of any desired and suitable construction and require no particular description.

The meter operating devices above described are inclosedv in a housing 41 secured to the motor casing 6 by screws 42, and the top of the housing is provided` with a glass 43 held in place by a screw ring 44.

'In operation, when fluid under pressure enters through the inlet 8 it lifts'the valve 13 from its seat 9 and the iuid escapes radially to contact with the wheel 17, thereby rotating the same, which will infturn rotate the shaft 16, pinion 20, gear 21, shaft 22, pinion 27, gear 28, shaft 29, and cone 30, which drives the frictio'n wheel 31 and the registering gearing 39, and pointers 40. The lift of the valve 13 also raises the shafts 16 and 29, according to the pressure and the amount of iuid passing through the motor, and when the cone 30 lifts, the speedvof the friction wheel 31 in correspondingly .ncreased, thereby registering the increased flow of the iluid, and vice versa. The disk 13v also acts as a check to prevent back flow through the meter under appropriate conditions.

The object of the reducing gearing, consisting of the pinions 20 and 27 and the gears 21 and 28, between the shafts 16 and 29, is to reduce the friction'which would otherwise exist if the shafts 16 and 29 were made integral or connected to operate at the same Speed. This gearing permits a freer and, more regular. rotation of the motor` shaft 16. The purpose of the cone 30 to vary the speed according to 'the lift ofthe inlet valve is to 4correct the inaccuracy which would other-l -pointers 40. The registering valve lifts the Huid will drive the wheel, but the speed will not be in proportion to the iow of the fluid because as the valve lifts the wheel also lifts, and an increasing portion of the fluid being dischargedE will pass under the lower edge of the wheel, and consequently have no eiect thereon, giving a progressive decrease in the volumetric registration as the valve lifts and the volume of the fluid increases. To correct this, and to vary the registration according to the volume, the cone 30 is provided to increase the relative speed of registration, and it has been found that this will give a correct registration under either high or low pressure. The angleof the cone 30 is determined by test and the size of the meter.

4lWliat l claim as new is l. The combination of a driven spindle movable lengthwise, a motor spindle movable lengthwise and engaging said driven spindle to shift the same, a pressure-opened valve bearing against said motor spindle and adapted to shift the same ;engthwise, a cone on said driven spindle, a yielding` friction wheel bearing against said cone, gearing between said driven and motor spindle, permitting said lengthwise movement, and a register operated by'said friction wheel.

2. rlhe combination of a vertically movable motor spindle, a pressure operated inlet valve bearing against said spindle and adapted to lift the san1e,a register, Variable speed gear between said register and spindle operated bythe latter according to the lift thereof, said gear including a shaft shiftable lengthwise by said spindle, and reducing gearing between said spindle and shaft.

3. The combination in a Huid meter, oi driven and driving spindles located in alinement' and shiftable lengthwise with each other and means operated by the duid to rctate the driving spindle, a pressure-operated valve bearing against the driving spindle to shift said spindles lengthwise, reducing gearing between the spindles, and a variable speed gear operated by the driven spindle and adapted to drive a register.

ln testimony whereof, l ai'iix my signature in presence of two witnesses.

PAUL GAETH.

Witnesses:

JOHN A. Boitier-neem', M. D. Lnvnnnnz. 

